In honour of the brilliantly named Days of Fear and Wonder season currently being run by the BFI, Joe and Ed spend the latest episode talking about science fiction. They discuss their favourite sci-fi films, how some great ones manage to use big ideas to make up for low budgets, the reasons why the genre as a whole seems to be held in higher esteem by critics than horror, and the role that it can play in representing contemporary fears in fantastical settings. It all ends with a lovely little song as well.